Tools & Wizards About Us
cz.wlw.cz screenshot

Report Summary

  • 26

    Performance

    Renders faster than
    45% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

cz.wlw.cz

dodavatel.cz - on-line vyhled?va? produkt? a slu?eb

Page Load Speed

3 sec in total

First Response

255 ms

Resources Loaded

2.7 sec

Page Rendered

65 ms

cz.wlw.cz screenshot

About Website

Welcome to cz.wlw.cz homepage info - get ready to check Cz Wlw best content right away, or after learning these important things about cz.wlw.cz

B?hem n?kolika vte?in z?sk?te zdarma kompletn? informace o ?esk?ch firm?ch a jejich slu?b?ch. 1.891.689 produkt? a slu?eb v datab?zi firem dodavatel.cz

Visit cz.wlw.cz

Key Findings

We analyzed Cz.wlw.cz page load time and found that the first response time was 255 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

cz.wlw.cz performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

20/100

10%

LCP (Largest Contentful Paint)

Value9.4 s

1/100

25%

SI (Speed Index)

Value6.7 s

36/100

10%

TBT (Total Blocking Time)

Value1,730 ms

10/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value10.8 s

22/100

10%

Network Requests Diagram

cz.wlw.cz

255 ms

ukonceni-provozu-portalu.html

430 ms

VersionedStaticResourcesServlet

1668 ms

aNTw

53 ms

gtm.js

103 ms

Our browser made a total of 8 requests to load all elements on the main page. We found that 13% of them (1 request) were addressed to the original Cz.wlw.cz, 75% (6 requests) were made to Dnb.com and 13% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.7 sec) relates to the external source Dnb.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 327.0 kB (73%)

Content Size

445.4 kB

After Optimization

118.4 kB

  • HTML
  • JavaScript

In fact, the total size of Cz.wlw.cz main page is 445.4 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 15% of websites need less resources to load. Javascripts take 228.0 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 184.6 kB

  • Original 217.4 kB
  • After minification 213.3 kB
  • After compression 32.8 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 184.6 kB or 85% of the original size.

JavaScript Optimization

-62%

Potential reduce by 142.4 kB

  • Original 228.0 kB
  • After minification 227.3 kB
  • After compression 85.6 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 142.4 kB or 62% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

5

After Optimization

5

  • Images
  • JavaScript

The browser has sent 5 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cz Wlw. According to our analytics all requests are already optimized.

Network Requests Diagram

cz.wlw.cz

cz.wlw.cz

255 ms

ukonceni-provozu-portalu.html

ukonceni-provozu-portalu.html

430 ms

VersionedStaticResourcesServlet

VersionedStaticResourcesServlet

1668 ms

aNTw

aNTw

53 ms

gtm.js

gtm.js

103 ms

Hero-tunnel-camera-pink-1600x400.jpg

Hero-tunnel-camera-pink-1600x400.jpg

338 ms

logo-dnb-white.svg

logo-dnb-white.svg

117 ms

logo-ampersand-white.svg

logo-ampersand-white.svg

100 ms

Accessibility Review

cz.wlw.cz accessibility score

98

Accessibility Issues

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Links do not have a discernible name

Best Practices

cz.wlw.cz best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

cz.wlw.cz SEO score

90

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    CS

  • Language Claimed

    CS

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cz.wlw.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it matches the claimed language. Our system also found out that Cz.wlw.cz main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

cz.wlw.cz

Open Graph data is detected on the main page of Cz Wlw. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: